EP1926192A1 - Box for dry wall, with axially fixed legs and axially sliding external supports - Google Patents

Box for dry wall, with axially fixed legs and axially sliding external supports Download PDF

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Publication number
EP1926192A1
EP1926192A1 EP07291323A EP07291323A EP1926192A1 EP 1926192 A1 EP1926192 A1 EP 1926192A1 EP 07291323 A EP07291323 A EP 07291323A EP 07291323 A EP07291323 A EP 07291323A EP 1926192 A1 EP1926192 A1 EP 1926192A1
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EP
European Patent Office
Prior art keywords
housing
skirt
hole
screws
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07291323A
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German (de)
French (fr)
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EP1926192B1 (en
Inventor
Jimmy Dameme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Capri SAS
Original Assignee
Capri Codec SA
Cooper Capri SAS
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Filing date
Publication date
Application filed by Capri Codec SA, Cooper Capri SAS filed Critical Capri Codec SA
Publication of EP1926192A1 publication Critical patent/EP1926192A1/en
Application granted granted Critical
Publication of EP1926192B1 publication Critical patent/EP1926192B1/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/123—Distribution boxes; Connection or junction boxes for flush mounting in thin walls

Definitions

  • the present invention relates to a housing for electrical equipment intended to be placed in a hole made in a drywall, including plaster.
  • a drywall switchgear of the type comprising a bottom and a cylindrical flanged skirt, and a housing retainer for retaining the housing in a hole in the partition. dried.
  • the retaining device may comprise two axially fixed lugs which protrude laterally from the skirt and which are elastically retractable towards the inside of the casing for the introduction of the casing into the hole by means of an inclined ramp formed on the back of the lugs. Once introduced, the housing is locked between the legs and the rim of the skirt. This housing is only suitable for one wall thickness.
  • the retaining device consists of two tabs or claws protruding from the skirt of the housing and are axially movable by screws through them.
  • the tightening of the screws makes it possible to tighten the tabs at the rear of the drywall, at the edge of the hole where the casing is arranged and in front of which it is retained by a rim (entirely peripheral or only partially).
  • This housing is generally satisfactory.
  • these long screws can not be disassembled, they can not be used for fixing an electrical equipment in the housing, which fixation therefore requires to generally provide two other screws in the prefabricated housing. It is thus a total of four screws, or even eight screws for the double boxes, which must be assembled in advance on the prefabricated boxes; in addition to the cost of the screws itself, the installation of these screws in the assembly machine strike the manufacturing price, because it requires an automatic screwdriver by screw. Finally, the presence of these four screws in the housing encroaches on the internal volume available for the electrical equipment.
  • the document EP 0 293 614 discloses a housing having the features set forth in the preamble of appended claim 1. According to this document, the counter-support is fixed by its own screws to the housing, and nothing then allows to adjust the exact orientation of the appliance plate relative to the housing, which must also use two other screws.
  • the object of the invention is to provide a new housing design for easier manufacturing and especially easier to set up for assemblers.
  • the invention achieves its goal through a housing for electrical equipment having all the features of claim 1 attached. Thanks to these arrangements, the housing of the invention can be manufactured quite simply and be mounted in the hole of the drywall by giving the lateral counter-support the appropriate axial position to ensure, at the end of the assembly, a exact positioning of the housing in the hole. Preferably, the support and the counter-support are first maintained at a spacing greater than the wall thickness, so that the housing can rotate in the hole, which allows to place the ducts more easily in the housing. The passage from one axial position to another is done using the same screws that serve to fix the appliance plate in the housing.
  • the screw holes are formed in a rotating ring axially locked in the cylindrical skirt of the housing but free in rotation, we can arrange the equipment plate in the desired final orientation even if the housing has not been placed itself in the correct orientation, and always with the same screws (usually two screws) mounting.
  • the rotating ring is advantageously a split ring retained by complementary reliefs formed on the inner wall of the skirt near its upper edge.
  • the screw holes are formed obliquely, so that the screwing of the screws causes the clamping of the split ring against its housing in the body of the housing and thus its locking in rotation.
  • said plurality of axial positions are limited by two stops, one of which may, for example, be constituted by the tabs themselves and the other by complementary reliefs provided on the housing and against the support.
  • the counter-support is in the form of a flange sliding axially on the edge of the skirt between the two stops.
  • the support lugs are formed, preferably by molding, in one piece with the wall of the housing, forming a flexible tongue for retraction of the legs.
  • the tabs have an inner thrust surface in the form of a ramp leading to a bearing portion.
  • At least two diametrically opposed tabs are provided for the equilibrium of the binding, or three or four equidistributed legs.
  • the housing 1 essentially comprises a box element 3 cooperating with a rotating ring 2 and a sliding collar 4.
  • the box member 3 comprises a circular bottom 31 and a cylindrical skirt 32 terminating at its upper edge opposite the bottom 31 by a radially outer peripheral lip 33 interrupted on segments 34.
  • the cylindrical skirt 32 are formed two radially opposite tabs. comprising a flexible tongue 35 attached towards the bottom of the box 3 and terminated by two radial flat supports 36 supported by ramp brackets 37.
  • the inner face of the box 3 comprises, near the upper edge of the skirt 3, a circular groove 38.
  • duct entrances in the skirt 32 and the bottom 31 these inlets being preferably in the form of pre-cut lids and attached by bridges of material breakable by the user. at the time of setting up the box.
  • the rotating ring 2 is a ring split at 21 and having an outer peripheral rib 22 whose dimensions allow it to engage with a slight clearance in the inner circular groove 38 of the box 3, so as to be able to freely rotate therein ( with more or less friction).
  • Two radially opposite thickenings 23 form inside the ring 2 candles in which are provided the holes 24 for screwing screw 5 attachment apparatus.
  • the holes 24 are oriented slightly obliquely so that the screws 5 which screw themselves are themselves inclined (see Figure 3), the heads of the screws 5 being more radially outwardly away from the center of the box than the bottom of their threaded rod.
  • the flange 4 is essentially formed of a flat circular flange 41 at the top of a short skirt 42 bordered at its bottom by a lip continuous inner 43.
  • the skirt 42 has, visible from the inside, alternations of thin portions 44 and thicker portions 45, the length taken along the circumference substantially corresponds to that of the lip segments 33 and interruptions 34 on the box 3.
  • inclined vertical projections 46 serve to ensure a better grip of the flange in the hole of the partition by opposing its rotation relative to the hole.
  • Figure 2 shows the three elements 2, 3 and 4 assembled to form the housing 1 of the invention.
  • the rotating ring 2 is introduced from above, thanks to its slot, inside the box 2 where its rib 22 is housed in the groove 38, which blocks the ring 2 in axial sliding but does not prevents the rotation of the box 2.
  • the flange 4 is passed downwards on the outside of the skirt 32: the tabs, attacked on their ramps 37 by the flange 4, retract towards the inside of the skirt. the box thanks to the elastic flexibility of the tongue 35 and thus let the flange pass beyond the tabs, but the supports 36 prohibit the return of the flange 4 down.
  • the thick parts 45 of the flange engage in the bare intervals 34 of the box, so that the flange 4 is locked in rotation relative to the box but is free to slide vertically relative to it, thanks to the cooperation thick portions 45 and lip segments 33. This vertical sliding is limited downwards by the supports 36 of the tabs as seen and upwards by the abutment formed by the lips 43 against the lips 33.
  • FIGS. 3 to 7 make it possible to follow the phases of insertion and fixing of the casing 1 according to the invention in the hole 16 made in a drywall 15.
  • the tabs 36 carry their ramp 37 on the walls of the hole 16, and they retract inwards (Figure 4) by bearing on the walls of the hole 16.
  • the flat edge 41 of the flange 4 then abuts against the upper face of the partition 15, at the periphery of the hole 16.
  • the clamping can thus continue until the tab supports 36 abut against the underside of the wall 15, in the vicinity of the hole 16, which has the effect of permanently fixing the housing 3 relative to the hole 16
  • the forced axial lift of the ring 2 has the effect of slightly spreading the candles 23 radially, to follow the screw, this which therefore pushes and presses the rib 22 of the ring 2 at the bottom of the retaining groove 38 of the box 3 and thus blocks the ring 2 in rotation, thus definitively fixing the angular position of the apparatus plate 6 even before it is fixed by its clamping against the edge 41 of the flange 4.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The case (1) has a cylindrical skirt (32) perpendicular to a base (31), and a retaining device for retaining the case in a hole. The device has radial tabs (36) protruding from the skirt. A flat rim (41) is provided on an external edge of the skirt. A fixation screw fixes a plate of an electrical apparatus and cooperates with a screwing hole (24) formed in a rotating ring (2) e.g. split ring. The ring is axially locked in the skirt. The screw allows passage of the rim from one axial position to another position and fixation of the plate in a selected orientation with respect to the case.

Description

La présente invention concerne un boîtier pour appareillage électrique destiné à être placé dans un trou pratiqué dans une cloison sèche, notamment en plâtre.The present invention relates to a housing for electrical equipment intended to be placed in a hole made in a drywall, including plaster.

L'état de la technique fait connaître un boîtier d'appareillage électrique pour cloison sèche, du type comprenant un fond et une jupe cylindrique à rebord, ainsi qu'un dispositif de retenue de boîtier destiné à retenir le boîtier dans un trou de la cloison sèche.The state of the art discloses a drywall switchgear, of the type comprising a bottom and a cylindrical flanged skirt, and a housing retainer for retaining the housing in a hole in the partition. dried.

Dans des versions primitives d'un tel boîtier, connues par exemple par les documents US 3 848 764 , GB 2 211 364 et FR 2 717 322 , le dispositif de retenue peut comprendre deux pattes axialement fixes qui dépassent latéralement de la jupe et qui sont élastiquement escamotables vers l'intérieur du boîtier pour l'introduction du boîtier dans le trou grâce à une rampe inclinée formée sur l'arrière des pattes. Une fois introduit, le boîtier est bloqué entre les pattes et le rebord de la jupe. Ce boîtier n'est bien adapté qu'à une seule épaisseur de cloison.In primitive versions of such a housing, known for example from the documents US 3,848,764 , GB 2 211 364 and FR 2,717,322 , the retaining device may comprise two axially fixed lugs which protrude laterally from the skirt and which are elastically retractable towards the inside of the casing for the introduction of the casing into the hole by means of an inclined ramp formed on the back of the lugs. Once introduced, the housing is locked between the legs and the rim of the skirt. This housing is only suitable for one wall thickness.

Dans une version améliorée d'un tel boîtier commercialisée par la Demanderesse, le dispositif de retenue consiste en deux pattes ou griffes qui dépassent de la jupe du boîtier et sont axialement mobiles grâce à des vis qui les traversent. Le vissage des vis permet de venir serrer les pattes à l'arrière de la cloison sèche, au bord du trou où le boîtier est disposé et à l'avant duquel il est retenu par un rebord (entièrement périphérique ou seulement partiellement). Ce boîtier donne généralement parfaitement satisfaction. Cependant, quoique la grande majorité des cloisons sèches soient minces, c'est-à-dire d'épaisseur généralement comprise entre 10 et 13mm, il faut pouvoir aussi s'adapter aux cloisons plus épaisses ; l'écartement maximal entre les pattes et le rebord doit donc être prévu très grand, ce qui implique d'utiliser des vis de montage des pattes très longues : le prix de ces vis est accru, ainsi que le temps de montage et de vissage. Par ailleurs, le risque existe qu'en cas de dévissage total des vis, la patte se détache et se perde de façon irrécupérable (par exemple, entre les deux parois d'une cloison creuse, ou au-dessus d'un faux-plafond, naturellement inaccessible), entraînant l'obligation de changer le boîtier.In an improved version of such a package marketed by the Applicant, the retaining device consists of two tabs or claws protruding from the skirt of the housing and are axially movable by screws through them. The tightening of the screws makes it possible to tighten the tabs at the rear of the drywall, at the edge of the hole where the casing is arranged and in front of which it is retained by a rim (entirely peripheral or only partially). This housing is generally satisfactory. However, although the vast majority of drywall is thin, that is to say generally of between 10 and 13 mm thick, it must also be able to adapt to thicker partitions; the maximum spacing between the tabs and the rim must therefore be very large, which involves using mounting screws very long legs: the price of these screws is increased, as well as the time of assembly and screwing. Moreover, the risk exists that in case of total unscrewing of the screws, the tab is detached and lost irreparably (for example, between the two walls of a hollow partition, or above a false ceiling , naturally inaccessible), resulting in the obligation to change the case.

Comme d'autre part, ces longues vis ne peuvent être démontées, elles ne peuvent pas être utilisées pour la fixation d'un appareillage électrique dans le boîtier, laquelle fixation impose donc de prévoir généralement deux autres vis dans le boîtier préfabriqué. C'est donc un total de quatre vis, voire de huit vis pour les boîtiers doubles, qu'il faut assembler à l'avance sur les boîtiers préfabriqués ; outre le coût des vis en lui-même, la pose de ces vis en machine d'assemblage grève le prix de fabrication, car il faut un tournevis automatique par vis. Enfin, la présence de ces quatre vis dans le boîtier empiète sur le volume intérieur disponible pour l'appareillage électrique.As on the other hand, these long screws can not be disassembled, they can not be used for fixing an electrical equipment in the housing, which fixation therefore requires to generally provide two other screws in the prefabricated housing. It is thus a total of four screws, or even eight screws for the double boxes, which must be assembled in advance on the prefabricated boxes; in addition to the cost of the screws itself, the installation of these screws in the assembly machine strike the manufacturing price, because it requires an automatic screwdriver by screw. Finally, the presence of these four screws in the housing encroaches on the internal volume available for the electrical equipment.

Pour remédier à ces inconvénients, la Demanderesse a déjà proposé la boîte faisant l'objet du brevet FR 2 766 025 .To remedy these drawbacks, the Applicant has already proposed the box that is the subject of the patent. FR 2 766 025 .

Par ailleurs, le document EP 0 293 614 fait connaître un boîtier présentant les caractéristiques énoncées dans le préambule de la revendication 1 annexée. Selon ce document, le contre-appui est fixé par ses propres vis au boîtier, et rien ne permet ensuite de régler l'orientation exacte de la plaque d'appareillage par rapport au boîtier, laquelle doit de plus utiliser encore deux autres vis.In addition, the document EP 0 293 614 discloses a housing having the features set forth in the preamble of appended claim 1. According to this document, the counter-support is fixed by its own screws to the housing, and nothing then allows to adjust the exact orientation of the appliance plate relative to the housing, which must also use two other screws.

Le but de l'invention est de proposer une nouvelle conception de boîtier permettant une fabrication plus facile et surtout une mise en place plus aisée pour les monteurs.The object of the invention is to provide a new housing design for easier manufacturing and especially easier to set up for assemblers.

L'invention atteint son but grâce à un boîtier pour appareillage électrique présentant l'ensemble des caractéristiques selon la revendication 1 annexée. Grâce à ces dispositions, le boîtier de l'invention peut-être fabriqué de manière assez simple et être monté dans le trou de la cloison sèche en donnant au contre-appui latéral la position axiale qui convient pour assurer, au terme du montage, un positionnement exact du boîtier dans le trou.. De préférence, on maintient d'abord l'appui et le contre-appui à un écartement supérieur à l'épaisseur de paroi, de sorte que le boîtier peut tourner dans le trou, ce qui permet de placer plus facilement les conduits dans le boîtier. Le passage d'une position axiale à une autre se fait à l'aide des mêmes vis qui servent à la fixation de la plaque d'appareillage dans le boîtier. Du fait que les trous de vissage sont formés dans un anneau tournant bloqué axialement dans la jupe cylindrique du boîtier mais libre en rotation, on peut disposer la plaque d'appareillage dans l'orientation définitive voulue même si le boîtier n'a pas été placé lui-même tout à fait dans la bonne orientation, et cela toujours avec les seules même vis (généralement deux vis) de montage. L'anneau tournant est avantageusement un anneau fendu, retenu par des reliefs complémentaires formés sur la paroi intérieure de la jupe près de son bord supérieur. Avantageusement, les trous de vissage sont formés obliquement, de sorte que le vissage des vis entraîne le serrage de l'anneau fendu contre son logement dans le corps du boîtier et donc son blocage en rotation.The invention achieves its goal through a housing for electrical equipment having all the features of claim 1 attached. Thanks to these arrangements, the housing of the invention can be manufactured quite simply and be mounted in the hole of the drywall by giving the lateral counter-support the appropriate axial position to ensure, at the end of the assembly, a exact positioning of the housing in the hole. Preferably, the support and the counter-support are first maintained at a spacing greater than the wall thickness, so that the housing can rotate in the hole, which allows to place the ducts more easily in the housing. The passage from one axial position to another is done using the same screws that serve to fix the appliance plate in the housing. Because the screw holes are formed in a rotating ring axially locked in the cylindrical skirt of the housing but free in rotation, we can arrange the equipment plate in the desired final orientation even if the housing has not been placed itself in the correct orientation, and always with the same screws (usually two screws) mounting. The rotating ring is advantageously a split ring retained by complementary reliefs formed on the inner wall of the skirt near its upper edge. Advantageously, the screw holes are formed obliquely, so that the screwing of the screws causes the clamping of the split ring against its housing in the body of the housing and thus its locking in rotation.

Avantageusement, lesdites plusieurs positions axiales sont limitées par deux butées, dont l'une peut, par exemple, être constituée par les pattes elles-mêmes et l'autre par des reliefs complémentaires prévus sur le boîtier et sur le contre-appui.Advantageously, said plurality of axial positions are limited by two stops, one of which may, for example, be constituted by the tabs themselves and the other by complementary reliefs provided on the housing and against the support.

Avantageusement, le contre-appui est sous forme d'une collerette coulissant axialement sur le bord de la jupe entre les deux butées.Advantageously, the counter-support is in the form of a flange sliding axially on the edge of the skirt between the two stops.

De manière connue, les pattes d'appui sont formées, de préférence par moulage, d'un seul tenant avec la paroi du boîtier, en formant une languette flexible permettant l'escamotage des pattes.In known manner, the support lugs are formed, preferably by molding, in one piece with the wall of the housing, forming a flexible tongue for retraction of the legs.

Avantageusement, les pattes présentent une surface intérieure de poussée sous forme d'une rampe conduisant à une partie formant appui.Advantageously, the tabs have an inner thrust surface in the form of a ramp leading to a bearing portion.

On prévoit au minimum deux pattes diamétralement opposées pour l'équilibre de la fixation, ou bien trois ou quatre pattes équiréparties.At least two diametrically opposed tabs are provided for the equilibrium of the binding, or three or four equidistributed legs.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante, en référence aux dessins annexés sur lesquels :

  • la figure 1 représente en perspective éclatée un boîtier conforme à l'invention avec ses trois éléments constitutifs non assemblés,
  • la figure 2 représente en perspective le boîtier de la figure 1 avec ses trois éléments assemblés,
  • la figure 3 représente, en deux demi-coupes par deux demi-plans radiaux respectivement passant et ne passant pas par une patte d'accrochage, le boîtier conforme à l'invention en phase d'approche dans le trou d'une cloison sèche,
  • la figure 4 représente en coupe le même boîtier conforme à l'invention en phase intermédiaire d'enfoncement dans le trou de la cloison sèche,
  • la figure 5 représente en coupe le même boîtier conforme à l'invention en phase finale d'enfoncement dans le trou de la cloison sèche,
  • la figure 6 représente en coupe le même boîtier conforme à l'invention en phase de début de vissage de la plaque d'appareillage,
  • la figure 7 représente en coupe le même boîtier conforme à l'invention en phase de fin de vissage de la plaque d'appareillage, avec blocage du boîtier dans le trou.
Other features and advantages of the invention will appear on reading the following description, with reference to the appended drawings in which:
  • FIG. 1 is an exploded perspective view of a housing according to the invention with its three unassembled constituent elements,
  • FIG. 2 represents in perspective the casing of FIG. 1 with its three assembled elements,
  • FIG. 3 represents, in two half-sections by two radial half-planes respectively passing through and not passing through a fastening tab, the case according to the invention in approach phase in the hole of a drywall,
  • FIG. 4 shows in section the same housing according to the invention in the intermediate phase of insertion into the hole of the partition dried,
  • FIG. 5 shows in section the same housing according to the invention in the final phase of penetration into the hole of the drywall,
  • FIG. 6 is a sectional view of the same housing according to the invention during the start phase of screwing the equipment plate,
  • Figure 7 shows in section the same housing according to the invention in the end phase of screwing the appliance plate, with locking of the housing in the hole.

Le boîtier 1 comporte essentiellement un élément de boîte 3 coopérant avec un anneau tournant 2 et un collerette coulissante 4.The housing 1 essentially comprises a box element 3 cooperating with a rotating ring 2 and a sliding collar 4.

L'élément de boîte 3 comporte un fond circulaire 31 et une jupe cylindrique 32 se terminant à son bord supérieur opposé au fond 31 par une lèvre périphérique radialement extérieure 33 interrompue sur des segments 34. Dans la jupe cylindrique 32 sont formées deux pattes radialement opposées comprenant une languette flexible 35 attachée vers le bas de la boîte 3 et terminée par deux appuis plats radiaux 36 soutenus par des équerres formant rampes 37. La face intérieure de la boîte 3 comprend, près du bord supérieur de la jupe 3, une rainure circulaire 38. De manière connue en soi mais non représentée, il est prévu des entrées de conduit dans la jupe 32 et le fond 31, ces entrées étant de préférence sous forme d'opercules prédécoupés et attachés par des ponts de matière cassables par l'utilisateur au moment de la mise en place de la boîte.The box member 3 comprises a circular bottom 31 and a cylindrical skirt 32 terminating at its upper edge opposite the bottom 31 by a radially outer peripheral lip 33 interrupted on segments 34. In the cylindrical skirt 32 are formed two radially opposite tabs. comprising a flexible tongue 35 attached towards the bottom of the box 3 and terminated by two radial flat supports 36 supported by ramp brackets 37. The inner face of the box 3 comprises, near the upper edge of the skirt 3, a circular groove 38. In a manner known per se but not shown, there are provided duct entrances in the skirt 32 and the bottom 31, these inlets being preferably in the form of pre-cut lids and attached by bridges of material breakable by the user. at the time of setting up the box.

L'anneau tournant 2 est un anneau fendu en 21 et comportant une nervure périphérique extérieure 22 dont les dimensions lui permettent de s'engager avec un léger jeu dans la rainure circulaire intérieure 38 de la boîte 3, de manière à pouvoir y tourner librement (avec plus ou moins de frottement). Deux surépaisseurs radialement opposées 23 forment à l'intérieur de l'anneau 2 des chandelles dans lesquelles sont prévus les trous 24 de vissage de vis 5 de fixation d'appareillage. Les trous 24 sont orientés légèrement obliquement de manière que les vis 5 qui s'y vissent soient elles-mêmes inclinées (cf. figure 3), les têtes des vis 5 étant plus écartées radialement vers l'extérieur du centre de la boîte que le bas de leur tige filetée.The rotating ring 2 is a ring split at 21 and having an outer peripheral rib 22 whose dimensions allow it to engage with a slight clearance in the inner circular groove 38 of the box 3, so as to be able to freely rotate therein ( with more or less friction). Two radially opposite thickenings 23 form inside the ring 2 candles in which are provided the holes 24 for screwing screw 5 attachment apparatus. The holes 24 are oriented slightly obliquely so that the screws 5 which screw themselves are themselves inclined (see Figure 3), the heads of the screws 5 being more radially outwardly away from the center of the box than the bottom of their threaded rod.

La collerette 4 est essentiellement formée d'un rebord circulaire plat 41 en haut d'une jupe courte 42 bordée à sa partie inférieure par une lèvre continue intérieure 43. La jupe 42 comporte, visibles de l'intérieur, des alternances de parties minces 44 et de parties plus épaisses 45, dont la longueur prise le long de la circonférence correspond sensiblement à celle des segments de lèvre 33 et des interruptions 34 sur la boîte 3. Sur l'extérieur de la jupe 42, des saillies verticales 46 inclinées servent à assurer une meilleure prise de la collerette dans le trou de la cloison en s'opposant à sa rotation par rapport au trou.The flange 4 is essentially formed of a flat circular flange 41 at the top of a short skirt 42 bordered at its bottom by a lip continuous inner 43. The skirt 42 has, visible from the inside, alternations of thin portions 44 and thicker portions 45, the length taken along the circumference substantially corresponds to that of the lip segments 33 and interruptions 34 on the box 3. On the outside of the skirt 42, inclined vertical projections 46 serve to ensure a better grip of the flange in the hole of the partition by opposing its rotation relative to the hole.

La figure 2 montre les trois éléments 2, 3. et 4 assemblés pour former le boîtier 1 de l'invention. L'anneau tournant 2 est introduit par le haut, grâce à sa fente, à l'intérieure de la boîte 2 où sa nervure 22 vient se loger dans la gorge 38, ce qui bloque l'anneau 2 en coulissement axial mais ne l'empêche pas de pouvoir tourner par rapport à la boîte 2. La collerette 4 est passée par le bas sur l'extérieur de la jupe 32 : les pattes, attaquées sur leur rampes 37 par la collerette 4, s'escamotent vers l'intérieur de la boîte grâce à la souplesse élastique de la languette 35 et laissent donc passer la collerette au-delà des pattes, mais les appuis 36 interdisent le retour de la collerette 4 vers le bas. Les parties épaisses 45 de la collerette s'engagent dans les intervalles nus 34 de la boîte, de sorte que la collerette 4 se trouve bloquée en rotation par rapport à la boîte mais est libre de coulisser verticalement par rapport à elle, grâce à la coopération des parties épaisses 45 et des segments de lèvre 33. Ce coulissement vertical est limité vers le bas par les appuis 36 des pattes comme on l'a vu et vers le haut par la butée formée par les lèvres 43 contre les lèvres 33.Figure 2 shows the three elements 2, 3 and 4 assembled to form the housing 1 of the invention. The rotating ring 2 is introduced from above, thanks to its slot, inside the box 2 where its rib 22 is housed in the groove 38, which blocks the ring 2 in axial sliding but does not prevents the rotation of the box 2. The flange 4 is passed downwards on the outside of the skirt 32: the tabs, attacked on their ramps 37 by the flange 4, retract towards the inside of the skirt. the box thanks to the elastic flexibility of the tongue 35 and thus let the flange pass beyond the tabs, but the supports 36 prohibit the return of the flange 4 down. The thick parts 45 of the flange engage in the bare intervals 34 of the box, so that the flange 4 is locked in rotation relative to the box but is free to slide vertically relative to it, thanks to the cooperation thick portions 45 and lip segments 33. This vertical sliding is limited downwards by the supports 36 of the tabs as seen and upwards by the abutment formed by the lips 43 against the lips 33.

Les figures 3 à 7 permettent de suivre les phases d'insertion et de fixation du boîtier 1 conforme à l'invention dans le trou 16 pratiqué dans une cloison sèche 15.FIGS. 3 to 7 make it possible to follow the phases of insertion and fixing of the casing 1 according to the invention in the hole 16 made in a drywall 15.

Le boîtier 1, assemblé et muni de ses deux vis 5 vissées partiellement dans les trous 24, est introduit dans le trou 16 (figure 3) par le dessus. En enfonçant le boîtier, les pattes 36 viennent porter par leur rampe 37 sur les parois du trou 16, et elles s'escamotent vers l'intérieur (figure 4) en prenant appui sur les parois du trou 16. Le bord plat 41 de la collerette 4 vient alors en butée contre la face supérieure de la cloison 15, à la périphérie du trou 16. Compte tenu du coulissement axial possible entre la collerette 4 et la boîte 3, on peut continuer d'enfoncer la boîte 3 verticalement, de sorte que (figure 5) les pattes 36 passent au-delà du trou 16 de la cloison sèche 15 et reprennent leur forme normale (cela dépend naturellement de l'épaisseur de la paroi sèche), la boîte 3 terminant sa course verticale par la butée des lèvres 33 contre les lèvres 43. On vient alors mettre en place la plaque d'appareillage 6 en la passant par des lumières appropriées sur les vis en attente 5, la plaque 6 s'appuyant sur le bord plat 41 et on commence le vissage des vis 5 (figure 6) dans les chandelles 23, jusqu'à ce que les têtes des vis 5 viennent porter contre la plaque d'appareillage 6. En continuant alors le vissage des vis 5 (figure 7), du fait que les têtes de vis sont en butée axiale sur la plaque 6, le rapprochement qui se continue entre les têtes de vis et les chandelles de vissage 23 de l'anneau 2 entraîne la remontée axiale dudit anneau 2 et donc, puisqu'ils sont liés axialement, celle de la boîte 3 qui coulisse à cet effet dans la collerette 4, axialement fixe. Le serrage peut ainsi se poursuivre jusqu'à ce que les appuis de pattes 36 viennent en butée contre la face inférieure de la paroi 15, au voisinage du trou 16, ce qui a pour effet de fixer définitivement le boîtier 3 par rapport au trou 16. Dans le même temps, au fur et à mesure du vissage des vis 5, compte tenu de leur obliquité, la remontée axiale forcée de l'anneau 2 a pour effet d'écarter légèrement les chandelles 23 radialement, pour suivre la vis, ce qui donc repousse et appuie la nervure 22 de l'anneau 2 au fond de la gorge de retenue 38 de la boîte 3 et bloque donc en rotation l'anneau 2, fixant ainsi définitivement la position angulaire de la plaque d'appareillage 6 avant même qu'elle soit fixée par son serrage contre le bord 41 de la collerette 4. Ainsi, selon l'invention, on obtient un boîtier sans lequel les vis restent peu nombreuses et assurent à la fois la fixation de la collerette de contre-appui, la fixation de la plaque d'appareillage, et la fixation en rotation de l'anneau tournant, les vis n'étant pas solidaires en rotation de ladite collerette.The housing 1, assembled and provided with its two screws 5 partially screwed into the holes 24, is introduced into the hole 16 (Figure 3) from above. By pressing the casing, the tabs 36 carry their ramp 37 on the walls of the hole 16, and they retract inwards (Figure 4) by bearing on the walls of the hole 16. The flat edge 41 of the flange 4 then abuts against the upper face of the partition 15, at the periphery of the hole 16. Given the possible axial sliding between the flange 4 and the box 3, we can continue to drive the box 3 vertically, so that (Figure 5) the tabs 36 pass beyond the hole 16 of the drywall 15 and return to their normal shape (this naturally depends on the thickness of the dry wall), the box 3 ending its vertical stroke by the abutment of the lips 33 against the lips 43. It is then put in place the appliance plate 6 in the passing through appropriate lights on the standby screws 5, the plate 6 resting on the flat edge 41 and screwing starts the screws 5 (Figure 6) in the candles 23, until the heads of the screws 5 are brought against the appliance plate 6. Continuing then the screwing screws 5 (Figure 7), because the screw heads are in axial abutment on the plate 6, the approximation which is continued between the screw heads and the screwing candles 23 of the ring 2 causes the axial rise of said ring 2 and therefore, since they are axially linked, that of the box 3 which slides for this purpose in the flange 4, axially fixed. The clamping can thus continue until the tab supports 36 abut against the underside of the wall 15, in the vicinity of the hole 16, which has the effect of permanently fixing the housing 3 relative to the hole 16 At the same time, as the screws 5 are screwed, given their obliquity, the forced axial lift of the ring 2 has the effect of slightly spreading the candles 23 radially, to follow the screw, this which therefore pushes and presses the rib 22 of the ring 2 at the bottom of the retaining groove 38 of the box 3 and thus blocks the ring 2 in rotation, thus definitively fixing the angular position of the apparatus plate 6 even before it is fixed by its clamping against the edge 41 of the flange 4. Thus, according to the invention, there is obtained a housing without which the screws are few and ensure both the attachment of the flange of against-support, Fixing the appliance plate, and fixing it n in rotation of the rotating ring, the screws not being integral in rotation with said collar.

Claims (7)

Boîtier (1) pour appareillage électrique destiné à être placé dans un trou (16) pratiqué dans une cloison sèche (15), comprenant un fond (31) et une jupe (32) perpendiculaire audit fond, ainsi qu'au moins un dispositif de retenue de boîtier destiné à retenir le boîtier (1) dans un trou de la cloison sèche, le dispositif de retenue comprenant au moins deux pattes fixes (36) dépassant latéralement de la jupe (32) qui sont élastiquement escamotables vers l'intérieur du boîtier pour l'introduction du boîtier dans le trou (16), et sur le bord extérieur de la jupe (3), du côté opposé au fond (31), au moins un contre-appui latéral (41) pouvant prendre plusieurs positions axiales, caractérisé en ce qu'il est prévu des vis (5) de fixation de plaque d'appareillage (6) qui coopèrent avec des trous de vissage (24) formés dans un anneau tournant (2) bloqué axialement dans la jupe (32) du boîtier mais libre en rotation, les mêmes vis (5) servant au passage du contre-appui d'une position axiale à une autre et à la fixation de la plaque d'appareillage (6) dans une orientation choisie par rapport au boîtier.Housing (1) for electrical equipment intended to be placed in a hole (16) made in a drywall (15), comprising a bottom (31) and a skirt (32) perpendicular to said bottom, and at least one device for housing retainer for retaining the housing (1) in a hole in the drywall, the retaining device comprising at least two fixed tabs (36) projecting laterally from the skirt (32) which are elastically retractable towards the inside of the housing for inserting the housing into the hole (16), and on the outer edge of the skirt (3), on the opposite side to the bottom (31), at least one lateral counter-support (41) can take up several axial positions, characterized in that apparatus plate fastening screws (5) are provided which cooperate with screw holes (24) formed in a rotatable ring (2) axially locked in the skirt (32) of the casing but free in rotation, the same screws (5) serving for the passage of the counter- supporting an axial position to another and fixing the apparatus plate (6) in a selected orientation relative to the housing. Boîtier (1) selon la revendication 1, caractérisé en ce que ces plusieurs positions axiales sont limitées par deux butées (36, 33).Housing (1) according to claim 1, characterized in that these plurality of axial positions are limited by two stops (36, 33). Boîtier (1) selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que le contre-appui (41) est sous forme d'une collerette (4) coulissant axialement sur le bord de la jupe entre deux butées (36, 33).Housing (1) according to any one of claims 1 or 2, characterized in that the abutment (41) is in the form of a collar (4) sliding axially on the edge of the skirt between two stops (36, 33). Boîtier (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'anneau (2) est un anneau fendu, retenu par des reliefs complémentaires formés (38) sur la paroi intérieure de la jupe (32) près de son bord supérieur.Housing (1) according to any one of claims 1 to 3, characterized in that the ring (2) is a split ring retained by complementary shaped reliefs (38) on the inner wall of the skirt (32) near from its upper edge. Boîtier (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les trous de vissage (23) sont formés obliquement.Housing (1) according to any one of claims 1 to 4, characterized in that the screw holes (23) are obliquely formed. Boîtier (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les pattes d'appui (36) sont formées, de préférence par moulage, d'un seul tenant avec la paroi du boîtier.Housing (1) according to any one of claims 1 to 5, characterized in that the support lugs (36) are formed, preferably by molding, in one piece with the wall of the housing. Boîtier (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les pattes (36) présentent une surface intérieure de poussée sous forme d'une rampe (37) conduisant à une partie formant appui.Housing (1) according to any one of claims 1 to 6, characterized in that the tabs (36) have an inner thrust surface in the form of a ramp (37) leading to a bearing portion.
EP07291323A 2006-11-24 2007-11-05 Box for dry wall, with axially fixed legs and axially sliding external supports Not-in-force EP1926192B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0610324A FR2909232B1 (en) 2006-11-24 2006-11-24 DRYWALL HOUSING WITH AXIALLY FIXED LEGS AND AXIALLY SLIDING EXTERIOR SUPPORTS

Publications (2)

Publication Number Publication Date
EP1926192A1 true EP1926192A1 (en) 2008-05-28
EP1926192B1 EP1926192B1 (en) 2013-03-27

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EP07291323A Not-in-force EP1926192B1 (en) 2006-11-24 2007-11-05 Box for dry wall, with axially fixed legs and axially sliding external supports

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EP (1) EP1926192B1 (en)
FR (1) FR2909232B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597743A1 (en) * 2011-11-23 2013-05-29 Schneider Electric Danmark A/S An installation box for mounting an electrical installation device
DE102013104259B3 (en) * 2013-04-26 2014-04-30 Albrecht Jung Gmbh & Co Kg Electrical/electronic installation apparatus for installation of wiring boxes in building system, has conditioning plates associated with spring that is fastened on support and supported under spring action against inner wall of box
EP3057188A3 (en) * 2015-02-13 2016-12-07 Schneider Electric España, S.A. Box and plate assembly for installing electrical elements or the like in hollow faces such as those of laminated boards or the like
EP3799236A1 (en) * 2019-09-26 2021-03-31 Schneider Electric Industries SAS Telescopic spacer ring assembly for electrical installation box

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2963993B1 (en) * 2010-08-17 2012-08-31 Cooper Technologies Co DRYWALL HOUSING, ROTATING RING AND ACCESSIBLE SCREW

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NL8204332A (en) * 1982-11-09 1984-06-01 Hollandse Apparatenfab Cylindrical plastic box for mounting switch etc. - has break-out ports, rotatable ring with mounting screws, and snap-in temporary cover
EP0293614A2 (en) * 1987-06-02 1988-12-07 Raimund Andris GmbH & Co. KG Hollow wall electrical installation box, especially for switches, socket-outlets and the like
GB2211364A (en) * 1987-10-20 1989-06-28 Ega Ltd Flush-mounting electrical accessory box
DE19519009A1 (en) * 1995-05-24 1996-11-28 Kaiser Gmbh & Co Kg Electrical wall socket outlet

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NL8204332A (en) * 1982-11-09 1984-06-01 Hollandse Apparatenfab Cylindrical plastic box for mounting switch etc. - has break-out ports, rotatable ring with mounting screws, and snap-in temporary cover
EP0293614A2 (en) * 1987-06-02 1988-12-07 Raimund Andris GmbH & Co. KG Hollow wall electrical installation box, especially for switches, socket-outlets and the like
GB2211364A (en) * 1987-10-20 1989-06-28 Ega Ltd Flush-mounting electrical accessory box
DE19519009A1 (en) * 1995-05-24 1996-11-28 Kaiser Gmbh & Co Kg Electrical wall socket outlet

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Title
DATABASE WPI Week 198426, Derwent World Patents Index; AN 1984-162814, XP002439256 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2597743A1 (en) * 2011-11-23 2013-05-29 Schneider Electric Danmark A/S An installation box for mounting an electrical installation device
DE102013104259B3 (en) * 2013-04-26 2014-04-30 Albrecht Jung Gmbh & Co Kg Electrical/electronic installation apparatus for installation of wiring boxes in building system, has conditioning plates associated with spring that is fastened on support and supported under spring action against inner wall of box
EP3057188A3 (en) * 2015-02-13 2016-12-07 Schneider Electric España, S.A. Box and plate assembly for installing electrical elements or the like in hollow faces such as those of laminated boards or the like
EP3799236A1 (en) * 2019-09-26 2021-03-31 Schneider Electric Industries SAS Telescopic spacer ring assembly for electrical installation box

Also Published As

Publication number Publication date
FR2909232A1 (en) 2008-05-30
EP1926192B1 (en) 2013-03-27
FR2909232B1 (en) 2009-04-17

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